Condensate and Boiler Feed Units Table of Contents

IB-405-A

Operation, Maintenance and Installation Manual Condensate and Boiler Feed Units Table of Contents

Operation and Installation Instructions...... 1-4 Replacing the rotary seal on G-Series Pumps . . . . . 5 Replacing the rotary seal on J-Series Pumps . . . . .6

Class 9037 Type HG Series A ...... 7 . Float Switch ...... 7 Float and Link Positions ...... 8 Class 9038 Type CG Series A ...... 9-11 . Float Switch/Alternator Adjustment Instructions . . . .12 Limited Warranty and Remedy...... 13 Operation and Installation Instructions Selection of Discharge Piping will have to start and stop too frequently . In normal operation, it is usually undesirable for a condensate In selecting condensate pumps and making proper pump to start and stop more than once every three piping connections, the friction in the discharge line minutes . from the pump to the boiler is very important . The pressure drop due to friction is sometimes much If the float switch travel is too long for the job, too greater than the boiler pressure . In some cases, using much water will be discharged at each cycle . In this larger discharge piping will make it possible to use a case, the boiler water level may fall too low before less expensive pump with a lower pressure rating . In the pump starts . Then the boiler low-water cutoff all cases, adequate discharge piping will mean longer will operate unnecessarily, or if there is a boiler-feed life and better service from your pump . device it will supply make-up water unnecessarily and the heating system will become water-logged . The pressure drop due to friction should always be estimated carefully, using the gallons-per-minute If the lower (OFF) position of the float switch is too low, rating of the pump as a basis and referring to any the pump may continue running until it loses its prime standard pipe-friction tables or charts (be sure to and the rotary seal may be damaged by running dry . make extra allowance for elbows, valves, etc .) . The When starting up a new pump, always check the lower discharge pipe size and pump pressure rating should float switch position to be sure that the inlet from the be selected so that the pump pressure rating will tank to the pump is covered with water at all times . provide a generous margin of safety over and above Any condensate pump can be used for a smaller the friction pressure drop plus the lift from pump to capacity than its nameplate rating by decreasing the boiler water level (not to water inlet to boiler) plus the travel of the float switch . In addition, in the case of maximum pressure at which the boiler will operate . Armstrong 4100, 4200, and 4300 series pumps, all Usually, the best discharge pipe size will be at least units of the same horsepower are identical except for one size – sometimes two sizes – larger than the pump float switch settings . Therefore, many of these units outlet tapping . can be used for larger capacities than the nameplate ratings by increasing the float switch travel . The table If possible, piping from the condensate pump outlet below shows standard float switch settings for 4100, to the boiler inlet should be graded upward for the 4200, and 4300 series Armstrong pumps . entire distance . In a downward run, or an ‘up-and- down’ run, air may be entrapped, restricting the flow Capacity GPM Pump Approx . of condensate . If an ‘up-and-down’ run cannot be Sq . Ft . Rating Number Inches avoided, it should be vented at the highest point . EDR Travel 1/3 HP Pump Float Switch Settings 8 Gal . steel tank or 4028 6 Gal . CI tank or 8,000 12 4222 3" When condensate pumps are tested in our factory, 8 Gal . stainless steel 4028-GS float switches are set according to the capacity rating . tank At the time of installation, the float switch should be 3 4132 checked to see that settings have not been disturbed 2,000 4232 3" during shipment and that they are correct for the 4332 1/3 HP Pump 6 4124 particular job . 15 Gal . steel tank or 4224 13 .5 Gal . CI . tank or 5" 4,000 4324 The travel of the float switch between the upper (ON) 15 Gal . stainless position and the lower (OFF) position determines the steel tank 9 4126 amount of condensate delivered to the boiler each 4226 time the pump operates . At our test, the float switch 6,000 4326 7" is set so that the amount is equal to or a little less than 12 4128 the GPM rating of the pump . For example, if the pump 8,000 4228 8" is rated 4000 sq . ft . EDR, 6 GPM, the switch is set to 4328 deliver about 4-6 gallons at each cycle . Depending 1/2 HP pump 10,000 15 41210 7" upon the water capacity of the boiler and the other 30 Gal . steel tank or 42210 24 Gal . CI tank or 43210 characteristics of the heating system, this float switch 30 Gal . stainless 15,000 22 .5 41215 10" setting may require modification for best results . steel tank 42215 If the float switch travel is too short for the job, only a 43215 small amount of condensate will be discharged each time the pump operates and consequently the motor

Page 1 Operation and Installation Instructions (continued) The “travel” as listed is the vertical displacement • Heating Plant between the water levels at the “On” and “Off” positions of the switch . The method of adjustment Before a condensate pump can operate is indicated in the float switch instruction sheet or satisfactorily, the heating plant itself must be in card that accompanies the pump . The “travel” good order . distance can be checked by inserting a yardstick The most important point to remember is that all into the vent opening at the top of the tank . heating units and return lines must be equipped with properly selected Armstrong traps in good 3500 Series working order . With improper or malfunctioning Vent: Pipe Line up to Ceiling then to Floor Drain steam traps, steam or water above 190°F Return Cond. Line Float Switch Gate may return to the condensate pump . For best Valve Strainer operation, condensate should be 160°F or less . Check Valve Gate Although Armstrong pumps can operate at higher Gate Valve temperatures, we cannot guarantee full capacity Valve Cond. By-Pass Clean- or satisfactory operation if condensate is allowed Discharge Line to Out Pipe to Floor Drain Boiler Floor Line to go above 190°F . This is particularly important Motor & Pump with 3700 series units, where there is a suction lift 3700 Series from the tank to the pump .

Gate Check Valve For unusually hot condensate, a specially Valve Vent: Pipe Line up to Ceiling then to designed unit may be required . Floor Drain Priming Plug Discharge Line to It is equally important to provide Armstrong Boiler Float Switch Motor & Pump Floor Line strainers on all lines, to keep scale and dirt out of the tank and pumps

Return Cond. Line • Location Locate the pump as close to the boiler as • Selection practical . A more powerful pump will be needed Be sure to select a pump that is big enough for if it must be far away from the boiler or below the the job . Select a capacity rating adequate for boiler . the maximum amount of condensate expected Locate the pump above floor if possible, in a under the most severe conditions . Remember position where it will be clean, dry, and easily that pressure rating must be sufficient to operate accessible. against maximum boiler pressure, plus lift and friction in piping between the pump and the Locate the tank inlet below the lowest point of boiler . return lines . If the pump must be below floor level, use a 3700 series unit with cast iron tank Armstrong pumps have rated capacities of three and take all possible precautions to keep the times the maximum flow of condensate for the motor and electrical equipment dry . specified amount of radiation; in other words, when the heating system is running at maximum Set the pump on a substantial, level foundation – capacity, the pump should not be operating more preferably off the floor, on a raised concrete base . than one-third of the time . This is a minimum factor of safety . If heavy overloads are possible, • Pipe Connections an oversized condensate pump should be Typical condensate pump hookups are shown in selected . the diagrams . No two individual installations will For most applications, where the pump is above be exactly alike, but certain essentials apply to all: floor level and in a reasonably dry location, The condensate inlet should be equipped Armstrong 4100, 4200 and 4300 series pumps with a strainer to keep scale and dirt out of the (for smaller jobs) and 3500 series pumps (for tank, unless all return lines are exceptionally larger capacities and higher pressures) provide a well protected with strainers . In addition, there wide range of selection . When the return is below should be some means (such as the gate valve floor level, 3700 series pumps with cast iron arrangement shown in the diagrams) of disposing tanks are recommended . Page 2 Operation and Installation Instructions (continued)

of condensate temporarily when the condensate pump is disconnected . At the pump outlet, there should be a check valve (reasonably close to the pump) to prevent water from flowing back out of the boiler . In addition, a gate valve should be provided for use when the pump is disconnected . A gate valve pr globe valve should be piped on the discharge of the pump after the check valve to throttle the flow as needed and to isolate the 4100, 4200 and 4300 Series pump for servicing . • Electrical Connections The vent opening at the top of the tank must be left open to the atmosphere . Good practice is to Check the motor characteristics (phase, cycles, run a pipe from the vent up to the ceiling, then voltage) to be certain that they are correct for your down to a point near the floor drain . This keeps power supply; otherwise, you may burn out the dirt out of the tank and helps keep the motor motor by running it on too high a voltage . dry . For priming the pump when starting up or testing, a union or a plugged tee at the vent Be sure that only a qualified electrician makes the opening is desirable . electrical connections to the pump . With small, single-phase units, the pump motor is commonly Unit is designed for atmospheric pressure controlled directly by the float switch . On three- operation. DO NOT PRESSURIZE RECEIVER! phase units, the float switch operates a motor starter, which starts and stops the pump motor . Many variations in piping arrangements are possible; and local codes vary widely . For When a pump with a make-up water valve is used, example, in some cities there must be a bypass the pump motor is controlled by a boiler water level around the condensate pump with gate valves, control . so that the return line can be connected directly to the boiler when the pump is disconnected . Be sure that all wiring is well protected from moisture . • Vent Connection Be sure that the motor is connected so that the Install a full sized vent to atmosphere from the pump rotates in the correct direction . receiver . DO NOT install any shut-off valves or other type of valves in the vent line . • Starting and Operation Do not operate the pumps without priming . If the • Overflow Connection pumps are run dry, even for a very short time, they Armstrong strongly recommends the may be severely damaged . use of overflow piping on receiver tanks Be sure to keep the motor dry . in open condensate return systems . Properly installed overflow piping increases WHEN STARTING UP A PUMP, ALWAYS ROTATE the efficiency of the system, while addressing IT BY HAND TO BE SURE IT TURNS FREELY, potential safety issues involved with the BEFORE TURNING ON POWER. unintentional escape of hot condensate . One suggestion would be the use of a “P”-trap to • Ordering Replacement Parts form a sufficient water seal . Be sure to check When ordering replacement parts for Armstrong that a water seal has formed to prevent venting condensate pumps, only the following information of steam through the overflow connection during is needed: operation . The name of the part assembly . The pump type number and serial number, from the brass nameplate on the tank (on 3500 series units, the nameplate is on the base .) Page 3 Operation and Installation Instructions (continued) Note: If you believe that your trouble is Pump starts and stops too frequently: caused by defective equipment, please return the complete pump and motor unit, or other Check the float switch adjustment; too little assembly, to us AS-IS. An attempt to adjust travel between “on” and “off” positions . or repair such equipment on the job may destroy evidence of defective workmanship or Pump does not start until after boiler water material, thus making it difficult or impossible falls below safe level: for us to handle your claim properly. Check the float switch adjustment; too little • Storage Procedures travel between “on” and “off” positions . Keep Motors Clean: 1 . Store indoors . Pump makes excessive noise: 2 . Keep covered to eliminate airborne dust and dirt . Has the pump been damaged by operating 3 . Cover openings for ventilation, conduit without prime or with hot condensate (above connections, etc, to prevent entry of rodents, 190°F)? snakes, birds and insects . Keep motors Dry: Is the pump on a substantial foundation? Is a 1 . Store in a dry area indoors . sound-deadening base required? 2 . Temperature swings should be minimal to prevent condensation . Is the noise being transmitted through 3 . Space heaters are recommended to prevent piping? If so, short lengths of hose condensation . connected in delivery and return lines will 4 . Treat unpainted flanges, shafts and fittings with usually improve conditions greatly . a rust inhibitor . 5 . Check insulation resistance before putting Pump leaks: motor into service . Keep bearings lubricated: Unit may have been disassembled and 1 . Once per month, rotate shaft several turns to reassembled improperly . distribute grease in bearings . 2 . If unit has been stored more than a year, add The rotary seal may be worn or scored or grease before start-up . may have been installed improperly . If worn, has this been caused by abrasive material in lines? • Troubleshooting

Motor overheats or burns out, or pump does not deliver enough condensate to boiler, or pump runs continuously or almost continuously:

Check the capacity and pressure rating of the pump; it may be too small for the job .

Check the temperature of condensate; the pump may not handle it if it is too hot .

Check the float switch; it may be damaged and jammed in the “on” position .

Check the lines and valves between the pump and boiler for clogging; check the pump for clogging .

Page 4 Replacing the Rotary Seal Assembly on G Series Armstrong Pumps: 1/3, 1/2 and 3/4 HP 1. Motor 4. Tube Fitting 7. Rotary Seal Assembly 10. Housing Gasket 2. Water Slinger 5. Motor Screws (4) 8. Impeller 11. Pump Housing 3. Motor Bracket 6. Pump Screws (4) 9. Impeller Screw 12. Threaded Inlet Casting

REMOVAL OF OLD SEAL ASSEMBLY INSTALLATION OF NEW SEAL ASSEMBLY A) Remove pump housing from motor F) Coat outside edge of new seat bracket and impeller assembly by with seal lubricant and slip it into removing pump screws . the bracket . Press into bracket with thumbs or wooden dowel . Handle seat carefully so seating surfaces are not scratched or chipped . be. sure it is squarely seated .

B) Remove impellers screw and motor G) Remount bracket on motor . screws (Note: opposite end of motor shaft is fitted with screwdriver slot to hold shaft securely while impeller screw is being removed .)

C) Insert two of the pump screws into H) Lubricate impeller hub with seal the two threaded holes in the bracket . lubricant . Slip new bellows and spring Tighten them slowly and evenly to onto impeller hub . Be sure bellows force the impeller and bracket off the slides freely on impeller hub . shaft . Do no pry the impeller or bracket! I) Replace impeller on motor shaft and secure with impeller screw . Hold shaft with screwdriver slot while tightening screw .

D) Remove old seal parts from impeller J) Replace pump housing onto hub and bracket . Be sure water slinger bracket, using a new housing gasket . is in place . Secure with pump screws . Be certain gasket is seated properly . E) Clean impeller hub thoroughly . . remove all loose particles of dirt, grease, etc . Use fine emery cloth if necessary . Also clean the recess in the bracket so the new seat will fit perfectly . Remove all particles and dirt on gasket surfaces of two castings .

Page 5 Replacing the Rotary Seal Assembly on J Series Armstrong Pumps: 1/2 HP - 3 HP 1. Motor 5. Rotary Seal Assembly 9. Housing Gasket 2. Water Slinger 6. Impeller 10. Pump Screws (8) 3. Bracket 7. Lock Washer 11. Vertical Inlet Casting 4. Motor Screws (4) 8. Impeller Nut 12. Horizontal Inlet Casting Tools Needed: Large Screwdriver 7/16" Wrench 9/16" Wrench 5/8" Socket 1" Socket Detergent (household)

REMOVAL OF OLD SEAL ASSEMBLY INSTALLATION OF NEW SEAL ASSEMBLY A) Remove 8 pump screws and lift out E) Coat outside edge of new seat pump and motor; remove drip cover . with seal lubricant and slip it into Insert large screwdriver into slot at the bracket . Press into bracket with end of motor shaft; hold shaft steady thumbs or wooden dowel . Handle seat and remove impeller nut and washer carefully so sweating surfaces are not from nose of impeller by turning scratched or chipped . . be sure it is counterclockwise . squarely seated .

B) While still holding motor shaft F) Remount bracket on motor . steady with screwdriver, use 1" socket to remove impeller by turning counterclockwise .

C) Remove the 4 motor screws and G) Lubricate impeller hub with seal separate the bracket from the motor . lubricant . Slip new bellows and spring onto impeller hub . Be sure bellows slide freely on impeller hub .

D) Remove old seal parts from H) Thread impeller on motor shaft impeller hub and bracket . Be sure extension and secure with washer water slinger is in place . and impeller nut . Hold shaft with screwdriver .

I) Replace motor assembly onto volute; using new housing gasket . Secure with pump screws . Be certain gasket is seated properly .

Page 6 Class 9037 Type HG Series A Float Switch

CAUTION: Switches are shipped with a bracket attached to the mounting plate . This bracket prevents the float and rod from moving in the tank during shipment . When installing the system, this clearly marked shipping bracket must be removed and discarded . APPLICATIONS: For automatically controlling the liquid level in a closed tank by float movement . MOUNTING: The Type HG Screw-in Tank Float Switches are mounted directly to the tank by means of the 2 ½” I .P S. . threaded fitting (D) . Before screwing this fitting into the tank, loosen Nut (C) so that the fitting (D) is free to rotate in the switch bracket . Tighten the fitting (D) so that there will be no leak past the threads . Then revolve the switch case until it is horizontal and tighten Nut (C) . ENCLOSURE RATING: NEMA 1 ENCLOSURES ARE INTENDED FOR INDOOR USE PRIMARILY TO PROVIDE A DEGREE OF PROTECTION AGAINST CONTACT WITH THE ENCLOSED EQUIPMENT IN LOCATIONS WHERE UNUSUAL SERVICE CONDITIONS DO NOT EXIST . WARNING: TO AVOID SHOCK HAZARD, DISCONNECT ALL POWER BEFORE INSTALLING OR SERVICING DEVICE. ADJUSTMENTS: Switches are shipped from the factory set for a specified float travel . Reasonable adjustment of float travel can be made in the field by moving adjusting strips (7) which are held in place by Screws (A) and (B) . Loosening Screw (B) and moving upper adjustment strip (7) will affect the upper limit of float travel only . Loosening screw (A) and moving lower adjusting strip (7) will affect the lower limit of float travel . REPLACEMENT PARTS LIST Item Number Description Number Req'd Part Number 1 Set of Moveable and Stationary Contacts. 2 9998 PC-242 2 Switch Mechanism...... 1 65079-502-51 3 Float (304 SS)...... 1 9049 HF3 4 Float (316 SS)...... 1 9049 HF4 5 Adjusting Plate Assembly...... 1 2810-D7-G1 6 Operating Lever. 1 65079-042-01 7 Adjusting Strip...... 2 2810-X8 8 Set Screw...... 1 21801-14080 9 45° Connector and Rod Assy ...... 1 2810-C3-G9 9 90° Offset 3"Connector and Rod Assy . . . . 1 2810-C3-G15 9 90° Offset 4-1/4" Connector and Rod Assy. . 1 2810-C3-G19 9 90° Offset 5" Connector and Rod Assy. . . . 1 2810-C3-G18 9 90° Offset 7" Connector and Rod Assy. . . . 1 2810-C3-G6 - Seal and Installation Kit (BUNA-N) . . . . . 1 9998 PC-337 - Seal and Installation Kit (VITON). 1 9998 PC-338

Page 7 Float & Link Positions

PRESSURE: In the use of any of these Float Switches, the pressure limit within the closed tank must not exceed 100 lbs . MOTOR PROTECTION: A float switch of this type does not afford motor protection, however it is quite frequently used as a pilot to operate a starter providing these desirable features . The Square D Co . manufactures a complete line of motor protective switches, information on which will be sent upon request . REVERSE ACTION: To change, relocate operating link as shown in table 2810-D22 above to the opposite slot in base plate and corresponding hole in adjusting plate (Item 5) . TYPICAL WIRING DIAGRAMS

ELECTRICAL RATINGS (HORSEPOWER) Voltage Single Phase AC Polyphase AC DC 115 ...... 2 HP ...... 3 HP ...... 1/2 HP 230 ...... 3 HP ...... 5 HP ...... 1/2 HP 460/575 ...... 1 HP ...... 32 ...... 1/4 HP

Control Circuit Rating: A600

Page 8 Class 9038 Type CG Series A Mechanical Alternator

ELECTRICAL RATINGS (HORSEPOWER) Voltage Single Phase AC Polyphase AC DC 115 ...... 2 HP ...... 3 HP ...... 1/2 HP 230 ...... 3 HP ...... 5 HP ...... 1/2 HP 460/575 ...... 1 HP ...... 32 ...... 1/4 HP

Control Circuit Rating: A600

REVERSE OPERATION: Form R controls are arranged for reverse action . In this form, the contacts will open on increase in liquid level . It is not recommended that a change be made in the field from standard to reverse operation or vice versa . MANUAL TRANSFER (LEAD-LAG) SELECTOR: Form N3 switches have a manually engaged selector which voids alternation . The pump selected to lead always comes on first . With selector disengaged, the unit reverts to normal alternation . MOTOR PROTECTION: A control of this type does not afford motor protection . However, it is quite frequently used as a pilot to operate a starter providing this desirable feature . The Square D Company manufactures a complete line of motor protective devices, information on which will be sent upon request . ENCLOSURE RATING: NEMA 1 ENCLOSURES ARE INTENDED FOR INDOOR USE PRIMARILY TO PROVIDE A DEGREE OF PROTECTION AGAINST CONTACT WITH THE ENCLOSED EQUIPMENT IN LOCATIONS WHERE UNUSUAL SERVICE CONDITIONS DO NOT EXIST . WARNING: TO AVOID SHOCK HAZARD, DISCONNECT ALL POWER BEFORE INSTALLING OR SERVICING DEVICE. ADJUSTMENTS: Switches are shipped from the factory set for a specified float travel . Reasonable adjustment of float travel can be made in the field by moving adjusting strips (7) which are held in place by screws (A) and (B) . Loosening screw (B) and moving upper adjusting strip (7) will affect the upper limit of float travel only . Loosening screw (A) and moving lower adjusting strip (7) will affect the lower limit of float travel .

Page 9 Class 9038 Type CG Series A Mechanical Alternator (continued) REPLACEMENT PARTS LIST

Item Number Description Number Req'd Part Number 1 Set of Moveable and Stationary Contacts. 2 9998 PC-242 2 Switch Mechanism...... 1 65079-502-51 3 Float (304 SS)...... 1 9049 HF3 4 Float (316 SS)...... 1 9049 HF4 5 Adjusting Plate Assembly...... 1 2810-D7-G1 6 Operating Lever. 1 65079-042-01 7 Adjusting Strip...... 2 2810-X8 8 Set Screw...... 1 21801-14080 9 45° Connector and Rod Assy ...... 1 2810-C3-G9 9 90° Offset 3"Connector and Rod Assy . . . . 1 2810-C3-G15 9 90° Offset 4-1/4" Connector and Rod Assy. . 1 2810-C3-G19 9 90° Offset 5" Connector and Rod Assy. . . . 1 2810-C3-G18 9 90° Offset 7" Connector and Rod Assy. . . . 1 2810-C3-G6 - Seal and Installation Kit (BUNA-N) . . . . . 1 9998 PC-337 - Seal and Installation Kit (VITON). 1 9998 PC-338

*WHERE SEPARATE POWER SUPPLIES ARE PROVIDED, THE DISCONNECT MEANS FOR EACH MOTOR MUST BE GROUPED TOGETHER AND PROVIDED WITH SUITABLE WARNINGS IN ACCORDANCE WITH THE NATIONAL ELECTRICAL CODE AND ALL OTHER APPLICABLE CODES AND STANDARDS.

EXPLANATION OF FLOAT TRAVEL AND POSITION

NORMAL OPERATION: Switches will cut in and out at the high point and low point of distance A plus B, given in the tables . Under normal conditions, as long as one pump alone is able to handle the incoming water, the pumps will alternate at this distance . With the water level continuing to rise, the second switch will cut in and start the second pump when the float reaches the top of distance D . Both pumps will continue to run until the float returns to the low point of distance D plus C, where one pump will cut out . The other pump will continue until the float reaches the low point of distance B .

Type CG

Page 10 Class 9038 Type CG Series A Mechanical Alternator (continued)

CLASS 9083 MECHANICAL ALTERNATOR- WIRING DIAGRAMS*

Page 11 Float Switch/Alternator Adjustment Instructions

Figure 1-A Figure 1

Warning: Switch is shipped with a bracket attached to a mounting plate to prevent the float from moving in the Pointer Spring Clip tank during shipment . When installing the unit, this bracket, clearly marked with a tag, MUST be removed for Set Screw Circular Plate float switch to operate . Figure 2

Figure 2

Figure 1 comes with a shipping bracket (Figure 1-A) towards the bottom; make sure to remove that bracket before start up .

Figure 2 above shows a left-hand dial, but also shows the (2) "0" points on the typical scale .

• 7b designates the upper scale. • B designates the set screw to be loosened to adjust upper scale. Set the upper scale to 7 before you start the pump . (Minor adjustments may be needed after start up .)

• 7a designates the lower scale. • A designates the set screw to adjust the upper scale. Set the upper scale to 7 before you start the pump . (Minor adjustments may be needed after start up .)

Page 12 Limited Warranty and Remedy

Armstrong International, Inc. (“Armstrong”) warrants to the original user of those products supplied by it and used in the service and in the manner for which they are intended, that such products shall be free from defects in material and workmanship for a period of one (1) year from the date of installation, but not longer than 15 months from the date of shipment from the factory, [unless a Special Warranty Period applies, as listed below]. This warranty does not extend to any product that has been subject to misuse, neglect or alteration after shipment from the Armstrong factory. Except as may be expressly provided in a written agreement between Armstrong and the user, which is signed by both parties, Armstrong DOES NOT MAKE ANY OTHER REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR ANY IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE. The sole and exclusive remedy with respect to the above limited warranty or with respect to any other claim relating to the products or to defects or any condition or use of the products supplied by Armstrong, however caused, and whether such claim is based upon warranty, contract, negligence, strict liability, or any other basis or theory, is limited to Armstrong’s repair or replacement of the part or product, excluding any labor or any other cost to remove or install said part or product, or at Armstrong’s option, to repayment of the purchase price. As a condition of enforcing any rights or remedies relating to Armstrong products, notice of any warranty or other claim relating to the products must be given in writing to Armstrong: (i) within 30 days of last day of the applicable warranty period, or (ii) within 30 days of the date of the manifestation of the condition or occurrence giving rise to the claim, whichever is earlier. IN NO EVENT SHALL ARMSTRONG BE LIABLE FOR SPECIAL, DIRECT, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING, BUT NOT LIMITED TO, LOSS OF USE OR PROFITS OR INTERRUPTION OF BUSINESS. The Limited Warranty and Remedy terms herein apply notwithstanding any contrary terms in any purchase order or form submitted or issued by any user, purchaser, or third party and all such contrary terms shall be deemed rejected by Armstrong.

Page 13 Armstrong Steam and Condensate Group 816 Maple Street, Three Rivers, MI 49093 – USA Phone: (269) 273-1415 Fax: (269) 278-6555 armstronginternational.com

Designs, materials, weights and performance ratings are approximate IB-405-A and subject to change without notice. Printed in U.S.A. - 7/11 Visit www.armstronginternational.com for up-to-date information. © 2012 Armstrong International, Inc.